Attica is a Qt library that implements the Open Collaboration Services API
version 1.6.  The REST API is defined here:
http://freedesktop.org/wiki/Specifications/open-collaboration-services/

It grants easy access to the services such as querying information about
persons and contents.  The library is used in KNewStuff3 as content provider.
In order to integrate with KDE's Plasma Desktop, a platform plugin exists
in kdebase.
